Questions Asked on
December 5, 2011

  1. geography

    Which of the following would NOT encourage a population to experience exponential growth? a constant birth rate b surplus of food c lack of disease d large-scale natural disaster

    asked by lola
  2. physics

    A uniform solid cylinder of radius R and a thin uniform spherical shell of radius R both roll without slipping. If both objects have the same mass and the same kinetic energy, what is the ratio of the linear speed of the cylinder to the linear speed of the

    asked by saud
  3. calculus

    5. A particle moves along the x-axis in such a way that its position at time t is given by x=3t^4-16t^3+24t^2 for -5 ≤ t ≤ 5. a. Determine the velocity and acceleration of the particle at time t. b. At what values of t is the particle at rest? c. At

    asked by fareha
  4. chem h

    Methanol (CH3OH) is used in the production of many chemicals. methanol is made by reacting carbon monoxide and hydrogen at high temperature and pressure. CO(g) + 2H2(g) ==> CH3OH(g) a) How many moles of each reactant are needed to produce 3.60 x 10^2 g

    asked by Skye
  5. algebra

    what are two different word phrases for the expression t/30 ?

    asked by Kyle
  6. geography

    One-half of the world’s energy comes from which source? A. hydroelectric power B. fossil fuels C. nuclear energy D. solar energy i think its B

    asked by lola
  7. chemistry

    A 35.0 ml sample of 0.225 M HBr was titrated with 42.3 ml of KOH. What is the concentration of the KOH?

    asked by Anonymous
  8. English

    What do the abbreviations "S" "F" "SCS" "SCV" "CD" and "CX" stand for in Shurley English.

    asked by Marsha
  9. physics

    a mule uses a rope to pull a box that weighs 3.0x10^2N across a level surface with a constant velocity. the rope makes an angle of 30.0 degrees above the horizontal and the tension in the rope is 1.0x10^2N. what is the normal force on the floor on the box?

    asked by Emmy
  10. physical science

    a newton meter is a measure of work also known as the.... what?

    asked by shawna
  11. Math - Trig please help!

    State two intervals in which the function y=7sin(1/5x)+2 has an average rate of change that is: a) zero b)a negative value c)a positive value Please explain how to get the intervals! Thanks a lot in advance!

    asked by linda
  12. chemistry

    The molarity of a solution prepared by dissolving 15.0 grams of NaCl in 100 mL water is 0.15 M. True or False

    asked by Anonymous
  13. Psychology

    Need help asap! Regarding schizophrenia, which of the following statements is FALSE? I think the answer is A a. Schizophrenia involves a "split personality," in which a person has two distinct personalities, one normal and one abnormal. b. One person in

    asked by Keller
  14. geography

    What was the time of greatest population growth in the world? A. the late nineteenth century B. the mid-seventeenth century C. the early twenty-first century D. the mid-twentieth century i think its D

    asked by lola
  15. chemistry

    A 116.9 g sample of nitric acid solution that is 70.0% HNO3 (by mass) contains how many moles of HNO3? how did you get the answer

    asked by DIANA
  16. Calculus

    Ice is forming in a pond at a rate given by dy/dx=ksqrt(t), where y is the thickness of the ice in cm at time t measured in hours since the ice started forming, and k is a positive constant. Find y as a function of t.

    asked by math whizz
  17. Chemistry

    A 6.08g peice of solid CO2 (dry ice) is allowed to vaporize (change to CO2g) in a balloon. The final volume of the balloon is 1.00 L at 300k. What is the pressure of the gas?

    asked by Kristian
  18. physics

    A hockey puck is given an initial speed of 19 m/s on a frozen pond. The puck remains on the ice and slides 113 m before coming to rest. The acceleration of gravity is 9.8 m/s 2 . What is the coefficient of friction between the puck and the ice?

    asked by khjkjk
  19. Calculus

    A tank is full of water. Find the work W required to pump the water out of the spout. r=6 h=3

    asked by Courtney
  20. Calculus

    Find the critical numbers of the function. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) h(p) = (p − 2)/(p^2 + 9)

    asked by Kris
  21. Chemistry

    How many grams of chlorine are needed to make 5.00 X 10^6 g of a solution that is 1.50 ppm chlorine by mass?

    asked by Sam
  22. Algebra 2

    Find the value of c that makes the expression a perfect square trinomial. Then write the expression as the square of a binomial. I didn't really understand what that meant. x^2-23x+c x^2-(2/7)x+c

    asked by Erica
  23. Calculus

    A tank is full of water. Find the work W required to pump the water out of the spout. r=6 h=3

    asked by Courtney
  24. chemistry

    Determine the [H3O+]. Are these solutions acidic or basic? a. [OH-]=7.0x10^-8 a. [H3O+]= acidic or basic? b. 0.00030 M Mg[OH]2 b. [H3O+]=acidic or basic?

    asked by Amanda
  25. Math

    . Determine which ratio forms a proportion with 2/7 by finding a common multiplier. (1 point)

    asked by Regiana
  26. Physics

    Two satellites A and B of the same mass are orbiting Earth in concentric orbits. The distance of satellite B from Earth’s center is twice that of satellite A. What is the ratio of the tangential speed of B to that of A?

    asked by idiot
  27. math

    Two trains depart at the same time from the same station and travel in opposite directions. One train travels 25 mph faster than the other train. After 2 hours the trains are 162 miles apart. Find the speed of each train.

    asked by John
  28. chemistry

    A 116.9 g sample of nitric acid solution that is 70.0% HNO3 contains how many moles of HNO3? how did you get the answer

    asked by diana
  29. Math

    The graph of a quadratic function has vertex(3,-4) and passes through the point (4,1). Find the equation of the function in standard form. Rewrite the equation in general form. Could someone explain to me how to do this, just don't understand.

    asked by -Untamed-
  30. US history HELP

    Blacks who moved to northern cities found: 1. inability to vote 2. quality public housing 3. acceptance and respect 4. middle-class status 5. new problems and forms of exploitation is it 4 or 3 ?

    asked by HM
  31. Chemistry

    Given the following equation: N2(g) + 3H2(g) = 2NH3(g). Determine to one decimal place the molar mass of each term, and WRITE EACH ONE AS A CONVERSION from moles to grams.

    asked by Kate
  32. US history HELP

    One major reason for religion’s growing appeal in the 1950s was: 1. the fire-and-brimstone style of television preachers 2. widespread guilt over the country’s material abundance 3. huge new churches that sponsored social and recreational activities 4.

    asked by HM
  33. math

    Two trains depart at the same time from the same station and travel in opposite directions. One train travels 25 mph faster than the other train. After 2 hours the trains are 162 miles apart. Find the speed of each train.

    asked by John
  34. chemistry

    A scuba diver takes a 2.8 L balloon from the surface where the pressure is 1.00 atm and the temperature is 34.0 °C to a depth of 25 m, where the pressure is 3.5 atm and the temperature is 18.0 °C. What is the volume of the balloon at this depth?

    asked by Anonymous
  35. spanish

    Preterite or imperfect? CAPITALIZED WORDS Hace muchos años, HAY (1) una muchacha que se LLAMA (2) Cenicienta. Ella VIVE (3) en una casa con sus dos hermanastras feas y su madrastra. En el mismo país, HAY (4) un joven príncipe. Él TIENE (5) 19 años y

    asked by lil wayne
  36. US history-Religion

    By 1960, about 65 percent of Americans: 1. prayed 2. believed in evolution 3. belonged to a church 4. read the Bible 5. believed in God There are no clear stats but 3 would be the most closest answer correct?

    asked by HM
  37. US history HELP

    Blacks who moved north- 1945-1960? Blacks who moved to northern cities found: 1. inability to vote 2. quality public housing 3. acceptance and respect 4. middle-class status 5. new problems and forms of exploitation 3, or 2 ?

    asked by HM
  38. Psychology

    Need to know if this the correct answer that I chose. Is the correct answer B Regarding personality disorders, which of the following statements is FALSE? a. Personality disorders are all maladaptive but vary in severity of impairment. b. Personality

    asked by Princess
  39. Government US

    The highest rate of inflation (13 percent) since World War II occurred in a. 1955. b. 1963. c. 1979. d. 1991. e. 2002. I cannot find this answer anywhere.

    asked by HM
  40. Physics

    A helium balloon lifts a basket and cargo of total weight 2250 N under standard conditions, at which the density of air is 1.29 kg/m3 and the density of helium is 0.178 kg/m3 . What is the minimum volume of the balloon? The acceleration of gravity is 9.81

    asked by help
  41. Physics

    A 115 kg astronaut on a space walk pushes against her space capsule that has mass 2250 kg. The astronaut accelerates 1.50 m/s2, 0°. (a) Find the force exerted on the astronaut. (b) Find the force exerted on the capsule. (c) Find the acceleration of the

    asked by Bree
  42. english 3

    Which of the following provides the best portrayal of the author's resolution of the story's climax? A. Taylor explains to Turtle that she can make no promises. B. Esperanza is relieved that she will no longer be responsible for Turtle. C. Esperanza's

    asked by Anonymous
  43. US history HELP

    Kennedy’s inauguration is best remembered for: 1. the list of promises in his speech 2. his elegant and inspiring rhetoric 3. the record cold in Washington that day 4. the large and friendly crowd 5. the flatness of his delivery I would say 3 .

    asked by HM
  44. algebra

    ok I have a algebra question how do you find the missing number for 42-9=43-? how do I get the answer and I need to understand it? I think the answer might be 45

    asked by julie
  45. calculus

    Two people start from the same point. One walks east at 3 mi/h and the other walks northeast at 2 mi/h. How fast is the distance between the people changing after 15 minutes?

    asked by Nathan
  46. physics

    A 200g bottle has a mass of 340g when filled with water and 344g when field with blood plasma. what is the density of plasma?

    asked by saud
  47. physics

    Joe stands on a bridge kicking stones into the water below. If he kicks a stone with a horizontal velocity of 3.10 m/s, and it lands in the water a horizontal distance of 6.60 m from where Joe is standing, what is the height of the bridge? Enter m as unit.

    asked by bekah
  48. US history HELP

    One of Johnson’s major goals in Vietnam was to: 1. keep the Soviets and Chinese from attacking elsewhere in Asia 2. use nuclear weapons to end the war as quickly as possible 3. use the war to unite the country at home 4. avoid losing it to communism 5.

    asked by HM
  49. chemistry

    17 liters of a gas is at an initial temperature of 67 degrees C and a pressure of 88.89 atm, what will be the pressure of the gas if the tempetature of the gas is raised to 94 degrees C and the volume of the gas is decreased to 12 liters? 177 atm 36.3 atm

    asked by Anonymous
  50. Math

    A model of the ocean floor takes up 2/5 of the space in an aquarium. if 3/8 of the model is coral, what fraction of the space in the aquarium is taken by coral?

    asked by Stevie
  51. physics

    a point charge q1= -4.00nC is at a point (0.6,0.8) in the xy axis, and a second point charge q2=4.73nC is at the point (0.6,0), calculate the magnitude and direction of the net electric field at the origin due to these two points. Ive tried calculating the

    asked by mo
  52. Calc

    find d^2y/dx^2 of dy/dx = -[y/x]^1/3

    asked by Anonymous
  53. ASTRONOMY-HELP PLEASE!!!!!

    Using Hubble's law, determine the recessional velocity of a galaxy 700 Mly away. Use 22 km/s/Mly for the Hubble's parameter. Show your work for full credit

    asked by Rebecca
  54. English 12 Essay

    I corrected my grammar errors from my last post. Don't bother checking to see if I got it right or not. My two body paragraphs seems to be a bit long. First idea is his jobs as a reporter/writer for newspapers and magazines. Second idea is his literary

    asked by Anoymous
  55. Physics

    A 171-N child sits on a light swing and is pulled back and held with a horizontal force of 73.5N. The magnitude of the tension force of each of the two supporting ropes is?

    asked by Kyle
  56. Basic Chemistry

    What is the pressure of 64.0 g of oxygen gas in a 1.50-L container at -37°C a. 4.12atm b. 51.6atm c. 19.6atm d. 8.2atm

    asked by Tasha
  57. chem

    A sample of PCl5 weighing 2.69 grams is placed in a 1.000 liter flask and vaporized completely at 250 o C. The final pressure observed at this temperature is 1.000 atmospheres. Note that some, but not all of the PCl5 decomposes according to the equation:

    asked by laura
  58. math

    There are n people in a room. Each person will shake hands with every other person once and only once. How many hand shakes will there be?

    asked by Lisa
  59. precalculus

    Simplify the Factorial Expression. (3n+1)!*3!/(3n-2)!

    asked by Robert
  60. chemistry

    Which reaction illustrates water acting as a Bronsted Lowry base?

    asked by Anonymous
  61. chemistry

    A fixed quantity of gas, at constant pressure, occupies a volume of 8.50 L and has a temperature of 29.0 degrees C. What volume will the gas occupy if the temperature is increased to 125 degrees C? 6.4, 11.2, 14.1, 12.6, 4.9

    asked by Anonymous
  62. physics

    What is the maximum acceleration of a platform that oscillates with an amplitude of 3.1 cm at a frequency of 8.0 Hz?

    asked by Javan
  63. US history HELP

    Kennedy’s successor as president, Lyndon Johnson: 1. like Kennedy, had been born into wealth and privilege 2. was a fairly typical southern conservative 3. genuinely cared about the disadvantaged in society 4. had a humble and modest character 5. may

    asked by HM
  64. chemistry

    The solubility of gases in water decreases with increasing water temperature

    asked by Anonymous
  65. biology

    1) What is the complementary strand of the DNA sequence GCAAT? a) GGCTT b) CGTTA c) CGTAT d) GCUUA

    asked by denis
  66. Psychology

    Is this the correct answer? Please help! If a person believes that his or her mind is being controlled by outside forces or that he or she is getting special coded messages from the television, this person is experiencing which type of psychotic symptom? I

    asked by Keller
  67. math word problem

    A rectangle garden is 30 ft by 40 ft. Part of the garden is removed in order to install a walkway of uniform width around it. The area of the new garden is one-half the area of the old garden. How wide is the walkway?

    asked by Kelly
  68. Government USA-Help

    Government can lawfully prevent a political rally from taking place a. under no circumstances; people have an unconditional right to express their views. b. when the rally would require unduly expensive police protection. c. when the views of those holding

    asked by HM
  69. chemistry

    2NaI (aq) + Cl2 = 2NaCl (aq) + I2 (s) If the ml of 0.45 M NaI are reacted with chlorine gas: What will be the molarity of the resulting salt solution?

    asked by Gabby
  70. science

    Earths mass is 6 x 10^24kg and its radius is 6.38 x 10^6m (6380 km ). Use the inverse-square law to show that in space-shuttle territory, 200 km above the earths surface the force of gravity on a shuttle is about 94% of that at the earths surface.

    asked by hannah
  71. Calculus

    These are the two problems from my homework I don't get.. can you help me? A: y=2x-x^3 [0,1] use the limit process to find the area of the region between the graph of the function and the x-axis over the given interval. Sketch the region B:

    asked by Wesley
  72. Calculus

    find the rate of change of the distance between the orgin and a moving point on the graph of y=x^2+1 idf dx/dt=2 centimeters per second.

    asked by help fast please
  73. geometry

    A person deposits $500.00 into a savings account and pays 5% annual interest that is compounded yearly. At the end of the 10 years how much money will be in the savings account ?

    asked by Anonymous
  74. chemistry

    A Bronsted-Lowry acid is a proton donor. True or False

    asked by Anonymous
  75. English Research Essay Check

    Hira Mubeen Professor Peggy Vera English 1301 5 December 2011 Keep Your Mind on the Road There are lucky days when a driver gets way with writing a text on a U-turn, or hearing a birthday carol from a loved one on their way to work. But not all drivers are

    asked by HM
  76. statistics

    If you have no preliminary estimate for p, how many business phone calls should you include in a random sample to be 98% sure that the point estimate will be within a distance of 0.034 from p

    asked by Anonymous
  77. chemistry

    What is the molecular weight of an unknown gas if 2.5g of it occupies 2L at 630 torr and a temp. of 600K? 10.2 36.6 74.3 28.9 40.1

    asked by Anonymous
  78. math

    Jack is twice as old as he was 5 years ago. His mother was then six times as old as he was. She is now 35 years old. how old is jack?

    asked by mary
  79. math

    a square room has sides that each measure 5 feet.How many square feet of carpet is needed to cover the rooms entire floor?

    asked by jordan
  80. Physics

    What is the maximum acceleration of a platform that oscillates with an amplitude of 2.1 cm at a frequency of 6.7 Hz? I feel like this is a very simple question, but I'm having trouble figuring it out.

    asked by Emily
  81. Psychology

    Can someone please tell me if I have chosen the correct answer? I said the answer is B Regarding schizophrenia, which of the following statements is FALSE? a. Schizophrenia involves a "split personality," in which a person has two distinct personalities,

    asked by Keller
  82. physics

    Container with movable piston at top and valve near bottom is filled an ideal gas. Valve is opened and some gas slowly escapes. Valve is then closed and the piston appears to be at a lower position. System is in thermal equilibrium. Is final pressure of

    asked by HELP, need ASAP
  83. US GOV

    Government can lawfully prevent a political rally from taking place a. under no circumstances; people have an unconditional right to express their views. b. when the rally would require unduly expensive police protection. c. when the views of those holding

    asked by HM
  84. physics

    Gas is confined in a tank at a pressure of 10 atm and a temperature of 14◦C. If 58 percent of the gas is withdrawn and the temperature is raised to 50◦C, what is the new pressure in the tank?

    asked by Bob
  85. trig

    if the terminal ray of an angle 0 in standard position passes through the point (-1,3),then cos0=

    asked by jason
  86. calculus

    find the are of the surface of the part of the sphere (x^2)+(y^2)+(z^2)=4 that lies above the plane z=4

    asked by saud
  87. 11

    How do I work this problem? Flying with the wind, an airplane can travel 1080 miles in six hours, but against the wind, it goes 360 miles in half the time. Find the air speed and wind speed

    asked by Judy
  88. math

    4.Suppose John sells his house and earns a profit of $600,000. With the profit, he buys a 20 year annuity that earns 6.5% interest compounded monthly. What monthly payment will John get?

    asked by Beth
  89. Chemistry

    (a) Which of the ions K+ , Na+ , Be2+ will have the largest heat of hydration? Which the smallest? (b) Of the two compounds KNO3 and NaNO3 , which has the stronger intermolecular forces? (c) Of the two compounds PCl3 and Xe, which has the stronger

    asked by Matthew
  90. science

    If a hook exerts a force of .001N on the ceiling, how much force does the ceiling exert on the hook?

    asked by Anonymous
  91. Chemistry

    NaHCO3+CH3COOH→H2CO3+NaCH3COO the mass of can changes after reaction, what would be a logical mass?

    asked by johanna
  92. math

    An equilateral triangle has a perimeter of 33 inches. What would the perimeter of a square whose sides each measure the same length as the side of the triangle?

    asked by chanelle
  93. chemistry

    30.0 g CuO + 20.0 g CH4 can produce a maximum of __?__ g Cu. 4 CuO + CH4 „_ 2 H2O + 4 Cu + CO2

    asked by Anonymous
  94. chemistry

    Molarity is defined as the number of moles of solute divided by the volume of the solvent

    asked by Anonymous
  95. damped harmonic oscillation

    For a damped simple harmonic oscillator, the block has a mass of 2.4 kg and the spring constant is 14 N/m. The damping force is given by -b(dx/dt), where b = 260 g/s. The block is pulled down 11.0 cm and released. (a) Calculate the time required for the

    asked by Javan
  96. Astronomy-HELP PLEASE!!!!!

    Some quasars (quasi-stellar radio source) have the largest red shifts ever observed. If this phenomenon is due to cosmic expansion, what can you say about their distance? What can you say about the age of the quasar at the time the light we now see left

    asked by Rachel
  97. Psychology Please Help!

    Nicki's mood swings are controlling her life. First, she is euphoric, creative, and needs little sleep. She then sinks into despondency. Her physician may prescribe: a. lithium to reduce the mania without worsening the depression. b. Prozac to elevate her

    asked by Anonymous
  98. Physics

    Suppose that a simple pendulum consists of a small 71.8 g bob at the end of a cord of negligible mass. If the angle è between the cord and the vertical is given by è = (0.0465 rad) cos[(6.52 rad/s) t + ö], what are (a) the pendulum's length and (b) its

    asked by Angel
  99. Science

    How can we determine which of our traits are dominant or recessive?

    asked by M.
  100. chemistry

    What is the mass percent oxygen in the compound NaNO3?

    asked by Anonymous
  101. math

    Almost everyone at the Bright Corporation reads a daily newspaper on a regular basis. In fact, altogether te company employs 2,940 people,of whom70% read The Daily News,45% read The Courier and 60% read The inquirer. One fourth of the employees reads The

    asked by Bryan
  102. trig

    Find the exact solutions of the equation in the interval [0,2pi). sin(x/2)+cos(x)=0

    asked by Isaac
  103. Math

    Jun-Jee either ran 5 or 7 miles each day for 30 consecutive days. His total mileage during this period was 166> How many days did he run 5 miles? How many days did he run 7 miles?

    asked by KC
  104. chemistry

    Imagine that 25.0 of ice at -3.0C is placed in a container holding water vapor at temperature of 120.0C . After a certain amount of time, the container has expanded slightly, but holds only water vapor at 110.0C. what is the final volume of the container?

    asked by Fajer
  105. physics

    Once a 28 kg crate is in motion on a horizontal floor, a horizontal force of 51 N keeps the crate moving with a constant velocity. The acceleration of gravity is 9.81 m/s. What is µk, the coefficient of kinetic friction, between the crate and the floor

    asked by david
  106. Physics

    What is the electric field midway between an electron and a proton separated by 0.7 nm?

    asked by Danny
  107. Math

    There are 189 students in the band. The difference between the number of boys and the number of girls is 27. How many boys and girls each are in the band?

    asked by KC
  108. calculus

    4. Given the function f defined by f(x) = cos2x for -π≤ x ≤π a. Find the x-intercepts of the graph of f. b. Find the x and y coordinates of all relative maximum points of f. Justify your answer. c. Find the intervals on which the graph of f is

    asked by fareha
  109. physics

    you pull a sled along a horizontal surface by applying a force of 620 N at an angle of 42.0 degrees aboce the horizontal. How much work is doen to pull the sled 160m.

    asked by Erika
  110. Physics

    I understand there is a relationship between temperature & pressure. If a rigid open container was placed in a freezer at -15 degrees C. Removed and its airtight cover replaced simultaneously at 1000mb. What would the pressure be within the container if it

    asked by Mike
  111. physics

    What minimum strength of magnetic field is required to balance the gravitational force on a proton moving at speed 6 106 m/s?

    asked by Richard
  112. Physics

    Find the mechanical energy of a block-spring system having a spring constant of 0.93 N/cm and an oscillation amplitude of 4.2 cm.

    asked by Javan
  113. physics

    A 15 kg box slides across the floor with an initial velocity of +7.6 m/s. It comes to a stop after sliding +14.8 m. How much friction was present?

    asked by andrew
  114. chemistry

    An atom of ^241Am95 undergos alpha decay and produces an alpha particle. The resulting element is: ^239Am91 ^235Np93 ^241Pu94 ^241Cm96 ^243Am95

    asked by Anonymous
  115. English Comp. I

    Exercise 32.4 Please help with this assignment. I'm having trouble with it. Rive to clarify pronoun reference. Most can be revised in many ways. If a pronoun refers ambiguously to more than one possible antecedent, revise the sentence to reflect each

    asked by Robert
  116. math riddle

    What frog was a famous comedian

    asked by tamra
  117. Teacher Aide in the Special Education Setting

    When tutoring learning challenged settings,learning challenged students are most often placed in A.resource rooms B.the nurse's office C.self-contained classrooms D.phychiatric clinics

    asked by annie
  118. geography

    Approximately what percent of Earth’s species live in rainforests? A. 75% B. 25% C. 50% D. 90% i think its B

    asked by lola
  119. Chemistry

    Calculate the heat (in kJ) required to transform 58.60 g of dinitrogen tetraoxide from a solid at a temperature of -9.3 °C to a gas at 47 °C. Report your answer to one decimal place. Data: Molar mass of dinitrogen tetraoxide, N2O4 = 92.011 g/mol Melting

    asked by Matthew
  120. CHEMISTRY

    A 116.9 g sample of nitric acid solution that is 70.0% HNO3 contains how many moles of HNO3? how did you get the answer

    asked by diana
  121. physics

    a tool chest is in contact with the floor points A & B. If a force 'F' is applied at an exceeded height 'h', the chest will tip over before it slips. If the coefficient of static friction between the floor and the chest is μs what is the largest value of

    asked by Anonymous
  122. calculus

    Water is leaking out of an inverted conical tank at a rate of 10,000 cm^3/min at the same time that water is being pumped into the tank at a constant rate. The tank has height 6 m and the diameter at the top is 4 m. If the water level is rising at a rate

    asked by Nathan
  123. Physics

    In an electric shaver, the blade moves back and forth over a distance of 2.2 mm in simple harmonic motion, with frequency 116 Hz. Find (a) the amplitude (in mm), (b) the maximum blade speed, and (c) the magnitude of the maximum blade acceleration. I got

    asked by Lisa
  124. physics

    a crate weighing 3500 newton down an inclined plane at constant speed. The plane is 7.5 meter long. Its height is 3.0 meter. What is the coefficient of sliding friction between the crate and the inclined plane?

    asked by xander
  125. physics

    a student walks 180m in 155s. the student stops for 35s and then walks 320m farther in 145s. What is the average speed of the entire walk?

    asked by manuel
  126. statistics

    okay heres the question and the answer I have, but Im not sure its right because the values seem way too high to interpet what it means..: Data: 63.4,65.0,64.4,63.3,54.8,64.5,60.8,49.1,51.0 "Assume that these observations on SRS from the late Cretaceous

    asked by Stumped again
  127. US history HELP

    Use of the term Chicano indicated: 1. Mexican American opposition to illegal immigration 2. increasing opposition of Hispanic Americans to the Vietnam War 3. efforts of Hispanic Americans to make Spanish the national language 4. growing political

    asked by HM
  128. chemistry

    Imagine that 25.0 of ice at -3.0C is placed in a container holding water vapor at temperature of 120.0C . After a certain amount of time, the container has expanded slightly, but holds only water vapor at 110.0C. what is the final volume of the container?

    asked by Fajer
  129. US history HELP

    Blacks who moved to northern cities found: 1. inability to vote 2. quality public housing 3. acceptance and respect 4. middle-class status 5. new problems and forms of exploitation is it 4 or 3 ?

    asked by HM
  130. science

    guyz got a hard question... A net force of 10N to a 5 kg mass. bY HOW MUCH does a body accelerate.. Given: F=10N;m=5kg

    asked by Loraine Ordono
  131. Math...HELP i dont understand this problem!

    Given 1/3 Y÷1/2 X=4 Discuss its meaning. Create a shape for X and for Y that will make this true. Draw and label the shapes, then illustrate how the quotient was obtained. Your drawing must be neat and accurate. Can individual pieces of a traditional

    asked by Dell
  132. chemistry

    A sample of gas with an initial volume of 32.50 L at a pressure of 755.0 torr and a temperature of 315.0 K is compressed to a volume of 15.80 L and warmed to 395.0 K. What is the final pressure of the gas?

    asked by Anonymous
  133. Algebra2

    Use properties of logartithms to simplify and solve. Thanks. ln(x-3)-ln(11x-23)+in(x-1)=0

    asked by MV
  134. Chemistry

    If the average velocity of O2 molecules at STP is 3.4*10^3 meters/sec, what is the average velocity of H2 molecules at the same temperature and pressure?

    asked by Carissa
  135. phyics

    Calculate (in MeV ) the binding energy per nucleon for 40 Ca .

    asked by paige
  136. 8th Grade

    Me and my friend are making our own 8th grade binder, you know like writing down planns for our 8th grade year. Here are the sections: - To-Do-List - Doodles (if you are bored) - Projects that are do (school plans) - Graduation Plans (speech, to-do-list,

    asked by Laruen
  137. Psychology

    Help is needed! I need to know whether or not this is the correct answer I have been reading and researching for some hours and still don't no whether or not this is the correct answer. Which of the following is NOT identified in the text as a risk factor

    asked by Keller
  138. US history HELP

    Toward the end of the Eisenhower presidency, the country could celebrate: 1. the addition as states of Alaska and Hawaii 2. the weakening of communism and the Soviet Union 3. a full-employment economy 4. a climate of growing racial harmony 5. the practical

    asked by HM
  139. Algebra II

    Please help-I need to write 4+6+8+10 in sigma notation would it be sigma sign in middle (3) on top of sign, n=0 on bottom of signma notation and to the right it would be (4+2n) so it would look like-- (3) (sigma in middle) (4+2n) n=0

    asked by Julia
  140. chemistry

    radioactive disintegration is 1st order reaction. calculate the age of ancient wood piece if it shows a c14 activity of 20% compared to present day wood. if the half change time for c14 is 5600 years

    asked by pinky
  141. Living environment

    what structures did the ancient whale basilosourus have that whales today do not have iT was their legs right

    asked by ADAM
  142. chemistry

    The pH of an HCl solution is found to be 1.74. Therefore the [H3O+] is:

    asked by Anonymous
  143. physics

    Part C Calculate (in MeV ) the total binding energy for 40 Ca .

    asked by paige
  144. chemistry

    Lewis dot of free radical cf2cl and hoco

    asked by devin
  145. chemistry

    Which of the following species has the weakest N-to-O covalent bond: HONO, NO2-, NO2, N2O, NO3-?

    asked by Celeste
  146. astronomy/physics

    Mercury has a semi-major axis of 0.367AU and an eccentricity of e=0.206. Calculate its distance to the Sun at perihelion. Remember to use units of AU in your answer.

    asked by silvia
  147. science

    A net force of 10N to a 5kg mass. By how much does a body accelerate? Given: F=10N; M=5kg

    asked by sophia lorraine
  148. PHYSICS HELP MEEE SO CONFUSED

    Liam fires a bullet into a block suspended by two cables, embedding the bullet in the block. The mass of the bullet is 5g and the mass of the block is 1g. 1) If the maximum height of the block is ,h, is 35 cm, how fast was the bullet originally moving?

    asked by Confused
  149. chemistry

    Air is a gas solution where oxygen is the solvent. True or False

    asked by Anonymous
  150. Physics

    A 0.9 kg object that stretches a spring 2.5 cm from its natural length when hanging at rest oscillates with an amplitude of 8.1 cm. Find the total energy of the system. The acceleration due to gravity is 9.81 m/s2. Answer in units of J

    asked by Maxx
  151. Grammar Check

    Firstly My teacher has said no "you or yous" in the whole of the essay. So if I put "Keep Your Mind on the Road" as a title.. is it appropriate? Should I put "Keep the Mind on the Road" instead? Moreover, my friend says they are some grammar mistakes in my

    asked by HM
  152. calculus

    what is the derivative of log3(x+X^2) log with base 3 i cant figure it out

    asked by ann
  153. British literature

    To Daffodils Fair daffodils, we weep to see You haste away so soon: As yet the early-rising sun Has not attain'd his noon. Stay,stay, Until the hasting day Has run But to the evensong, And, having pray'd together, we Will go with you along. We have short

    asked by alisa
  154. Algebra2

    log((x(sqrtã(X^2+1)/(x+1)^(2/3)))^6 Any ideas would be great, thanks

    asked by MV
  155. chemistry

    Phenolphthalein turns __________ when the solution is basic.

    asked by Anonymous
  156. geometry

    this diagram show isosceles trapezoid QRST. What is the length , in units of _ QS when Q x-1 and 2x-2

    asked by aaron
  157. English

    I told the child__down for nap, when he fall asleep, o __down for nap of my own. lay.lay lie.lay lie,lie lay.lie what is best option.

    asked by madad
  158. Math

    The graph of a quadratic function has vertex(3,-4) and passes through the point (4,1). Find the equation of the function in standard form. Rewrite the equation in general form. Could someone explain to me how to do this, just don't understand.

    asked by -Untamed-
  159. chemistry

    When 71.43 mL of 0.855 M HNO3 is diluted with 20.57 mL of water, the molarity of the nitric acid becomes

    asked by Anonymous
  160. Algebra

    e^x-2-12^2x+3=0

    asked by MV
  161. chemistry

    How many grams of na cl are required to make 500ml of a 0.65 percent w/v

    asked by devin
  162. physics

    A 1680- kg rocket is launched with a velocity v0 = 55 m/s against a strong wind. The wind exerts a constant horizontal force Fwind = 15600 N on the rocket. At what launch angle will the rocket achieve its maximum range?

    asked by leav
  163. chemistry

    Determine the pH. Are these solutions acidic or basic? a. [H3O+]=1.0*10^-8 a. pH=acidic or basic? b.[OH-]=1.0*10^-9 b. pH=acidic or basic? c.pOH=1.4 c. ph= acidic or basic? d.pOH=7.8 d. pH=acidic or basic?

    asked by Amanda
  164. PSYCHOLOGY HELP PLEASE!!

    Jeannie was a delightful little girl who made a remarkable change during adolescence. Her parents expected the usual teenage rebellion, but Jeannie had become dark and morose. Her skin had a deathly pallor, and she became very thin. They feared that she

    asked by Anonymous
  165. physics

    if the acceleration of a truck over a given time interval is zero, how does the instaneous velocity of that truck at any instant during that interval compare to its average velocity over the interval?

    asked by Anonymous
  166. US History

    he purpose of Kennedy’s proposed tax cut was to: 1. help the economy by stimulating consumer spending 2. reduce the government’s budgetary surplus 3. win Republican support for civil rights legislation 4. reduce the size of the federal government 5.

    asked by HM
  167. physics

    1.A 500.0 g mass is placed on a 20.0 cm cube of gelatin. The 500.0 g mass (a 5.00 cm diameter disk) depresses the gelatin 0.243 mm. What is Young's modulus for this gelatin? ____________N/m^2 Later, a 2.00 kg mass disk (5.00 cm in diameter) is placed on

    asked by sand
  168. Social Studies

    What was Paul Revere's Ride suppose to be? What was Paul Revere suppose to do?

    asked by Jaycee
  169. US history HELP

    he purpose of Kennedy’s proposed tax cut was to: 1. help the economy by stimulating consumer spending 2. reduce the government’s budgetary surplus 3. win Republican support for civil rights legislation 4. reduce the size of the federal government 5.

    asked by HM
  170. physics

    What is the minimum amount of force required to move a 4000 pound truck that is resting on level ground? If 15000 N of force is applied can you move the truck? Ms=.56 Mk=.31

    asked by Cody
  171. Math (Calculus)

    Find the derivative of (ln(tan(x))/3pi

    asked by Caleb
  172. college algebra (math 90)

    How do i graph this hyperbola? X^2+6x-3y^2=0

    asked by Alfred
  173. Psycholofgy

    Help Needed! I need to know if this the correct answer. Calvin has been on a "pleasure binge" for the last three days. He has cleaned out his bank account spending the money on anything that gains his attention. He would be described as loud, elated, and

    asked by Princess
  174. chemistry

    A sample of gas has an initial volume of 2.80 L at 755 torr. If the volume of the gas is increased to 3.70 L, what will the pressure be?

    asked by Anonymous
  175. chemistry

    If the radiicativr decay of nuclear explosion contains 90 Sr , with a half life of 28.1 years how long will it take for 99 of this radioaioot to decay

    asked by devin
  176. chemistry

    The average out door concentration of carbon monoxide ,co at 15 c and 1 atm of pressure is about 900 micrograms per cm^3 . What is this concentration expressed : on ppm scale ? And on the molecules /cm^3scale?

    asked by devin
  177. english

    Is this a good thesis statement? Filth is characterized by dirt, foul language, and corrupt conditions. Baldwin personifies the meaning of filth through Gabriel’s character and his actions brilliantly.

    asked by jon
  178. BAA

    Is there a sample Black adievement award?????

    asked by Laruen
  179. Chemistry

    What is the molarity of OH- in a 7.83×10-3 M NaClO solution that hydrolyzes according to the equation. ClO-(aq) + H2O(l) = OH-(aq) + HClO(aq) The information they give is that constants Kh=2.86E-7 I know how to solve the problem when the constant Kw is

    asked by Jay
  180. AP Physics

    Liam fires a bullet into a block suspended by two cables, embedding the bullet in the block. The mass of the bullet is 5g and the mass of the block is 1g. 1) If the maximum height of the block is ,h, is 35 cm, how fast was the bullet originally moving?

    asked by Hester
  181. Chemistry

    how many moles of chlorine gas are required to react with 164 g of Br

    asked by James
  182. science

    I have to do a poster with the theme "Soil to Spoon" dealing with soil,forests and related to natural resources. Would you have any sugestions or links that would help me get started with this projest? Thank you for your help.

    asked by jill
  183. chemistry

    25 mL of nitric acid of an unknown molarity are used. the end point of the titration was reached using the basic solution. what is the molarity of the nitric acid?

    asked by
  184. Science 7R: Lab Questions (plz help)

    I really need help. 12. What are the three main parts of an animal cell? 14. If all of our surfacecells were colorless, where do you think our skin color is located? My science teacher is collecting it tommrrow and grading it. Please Help!!! Thank You!!!

    asked by Laruen
  185. Algebra 2

    -4x^2-2-3 Put the equation in vertex form and find the vertex

    asked by Ara
  186. grade 12 math

    Given the function f(x)= x^3+8/x^2+-6, determine the eqaution of the asymptotes and state the end behaviours of the graph near the asymptotes.

    asked by logan
  187. chemistry

    1 gram of C3H8 gas and 1 gram of O2 gas are delivered to a metal sphere with a fixed volume of 1 L. After the two gases are introduced, the two reactants are ignited and burned according to the balanced reaction C3H8(g)+5O2(g)changes to3CO2(g)+4H2O(g)

    asked by laura
  188. socials

    for another picture I add on poster of 1960 I draw picture of Avro arrow. I draw and write beside it that it was the finest aircrafts built. It was built for necessity protection of Canada. it not made in 1950's is it?

    asked by Mohammad
  189. Physics

    A 48 g ball is released from rest at h = 1.4 m above the bottom of the track shown in the figure below. It rolls down a straight 30° segment, then back up a parabolic segment whose shape is given by y = 1/4 x2, where x and y are in m. How high will the

    asked by Jeff
  190. Algebra

    1. How do we find the greatest common factor of a polynomial? Demonstrate the process with an example, showing your work. 2.When finding the greatest common factor of a polynomial, can it ever be larger than the smallest coefficient? 3. Can it ever be

    asked by JERSEYGIRL
  191. Government USA-Help

    Major shifts in the Supreme Court's positions have usually been due to a. the pressure of public opinion. b. new developments that dramatize an immediate need for change in the law. c. turnover in the Court's membership. d. threats from Congress. e.

    asked by HM
  192. chemistry

    A particular radioactive substance has a half-life of 4 minutes. How long will it take for 250 g of this radioactive material to decay to less than 0.1g? 24 min 36 min 40 min 48 min 72 min I got 32 min but that not one of the choices. Please help

    asked by Anonymous
  193. chemistry

    A chemist titrates 17.44 mL of 0.346 M NaOH into a flask containing 50.13 mL of 0.179 M HCl. When the titration is complete, the pH of the solution in the reaction flask is? 12.64 .0919 1.36 2.22 11.78

    asked by Anonymous
  194. Math

    Solve the following quadratic equation(as exact values) using the quadratic formula. x^2-10x-15=0 I got 5+-2sqrt10/2. ^ Sorry hard to write it out. But basically there is a 5 there, the negative sign is supposed to be under the positive sign, then there is

    asked by -Untamed-
  195. Algebra II

    I solved one of these sigma notations and had Reiny check it in an earlier post but this one totally befuddles me- Which of the following terms would not be in the series generated by the expression: 5 Signma symbol (k^2-5k+2) k=2 the choices are 2, -2, 4

    asked by Julia
  196. math

    Can i show you a thing i need help with...

    asked by Amber
  197. physics

    You can lift a box up a vertical distance of 1 meter or you can slide it up a frictionless 2-meter ramp. How do the amounts of forces compare?

    asked by comet
  198. sci

    how can i do an experiment involving plants if it is winter

    asked by anonymouse
  199. calculus

    find the volume of the solid obtianed by rotating the region bounded by the given curves about the line x=6 x=y^2 , x=1

    asked by saud
  200. calculus

    Find dx at (-5,6) if x2 + y2 =0 2 Marks dy

    asked by nida jabeen
  201. precalc

    Suppose that z1=6-8i. Find: A. The Trig Form of the complex number z1, where your theta is in degrees. B. The Trig form of z1*z2, where z2=5[cos(60degrees)+isin(60degrees)] C. The Trig Form of (z1)^4

    asked by Joshua
  202. chemistry

    A sample of gas has an initial volume of 2.80 L at 755 torr. If the volume of the gas is increased to 3.70 L, what will the pressure be?

    asked by Anonymous
  203. Physics

    A 90 kg mover climbs a ladder to a height of 8 m in 32 s. Find the power rating of the mover. I solved by using P= mgh/t and came up with 220.5 watts. Is this correct or am I suppose to use P=w/t and not use gravity in the equation?

    asked by Mack
  204. GRAMMAR

    SALLY TOLD JANICE THAT SHE MADE THE HONOR ROLL.

    asked by Anonymous
  205. chemistry

    You have a 0.0825 M solution of HCl. You expect the pH to be

    asked by Anonymous
  206. science equation

    I don't think I have enough information to answer this question but my teacher says i do. The question is, If I drop a ball off of the AUL building and it take 8 seconds to hit the ground what is the velocity of the ball? I know that v=d/t so I have v=d/8

    asked by Alli
  207. chemistry

    The valve between a 5 liter tank in which the gas pressure is 911.925 kPa and a 10 liter tank containing gas at 4560 torr is turned open and equilibrium is established at constant temperature. What is the final pressure in the two tanks in atmospheres?

    asked by laura
  208. USA PoliScience

    Puerto Ricans who immigrate to the United States are most likely to settle in California Texas New Jersey New Mexico Arizona Usually the docs say Upper north east. I would say the closest would be New Jersey? But there is a possibility of the south as

    asked by HM
  209. math

    A river 3 m deep and 40m wide is flown at the speed 2km/hour how much water will flow in sea in 1 minute

    asked by nabeel
  210. Inter. acct.

    You have been retained as a consultant by the company’s Audit Committee of the Board of Director’s, and asked to research three separate issues. First the typical acquisition costs associated with land purchases. Use the facts presented in Exercise

    asked by Sandy
  211. chemistry

    Lewis dot of free radical cf2cl and hoco

    asked by devin
  212. HIS/115

    Compare European settlements in New England, the Middle Colonies, the Chesapeake, and the South in terms of goals, governments, social structures, and religions. What similarities do you find most remarkable? What differences do you find interesting? Why?

    asked by susan
  213. math

    draw a diagram to find a quotient. Deviding whole numbers by fractions.

    asked by Anonymous
  214. Chemistry

    What is the concentration of an HCl solution if 23.1 mL of HCl are needed to neutralize completely 35.0 mL of 0.101 M Ba(OH)2 I cannot get the right answer (Macic)(23.1mL)=(0.101M)(35.0mL) Macid = .153

    asked by corey
  215. Statistics

    test the hypothesis that the average height of a male in USA is greater than 5'10 and the average height of a female is less than 5'6 at a 90 percent confidence level

    asked by Lynn
  216. english

    Would Culture, Heroism, and Supernatural Forces in Beowulf be a good topic for an expository essay on Beowulf being an epic poem?

    asked by tan
  217. Math

    There is a safe bond B which has 4 years before maturity and pays a coupon of 12% at regular annual intervals and a face value of $100 at maturity. (a) What will be the current price of bond B?

    asked by Robbie
  218. Language

    What is the deffinition for symertry and a sentence

    asked by Ashley
  219. statistics

    It has been reported that 26% of children in the U.S. live in homes where there is a single parent. A school administrator cliamed that less than 26% of children in her school district lived in homes with a single parent. In a sample of 225 children, 54 of

    asked by Tracie
  220. Middle school algebra

    Please help: Problem: 14 divided by a number is 21. What is the number? my teacher says the answer is 2/3 but I don't get that answer. I set it up: 14/n= 21 Then tried solving as: (n/14)(14/n) = 21/14 My answer = 1 1/2 What am I doing wrong? Thank you

    asked by Morgan
  221. chemistry

    In the Ideal Gas Law, where PV = nRT, R is ?

    asked by Anonymous
  222. Algebra1

    A CELL PHONE ORDDERS 500 NEW PHONES FROM A MANFACTURE.IF THE PROBABLITY OF A PHONE BEING DEFECTIVE IS 2.6% PREDICT HOW MANY OF THE PHONES ARE LIKELY TO BE DEFECTIVE.ROUND TO THE NEAREST WHOLE NUMBER

    asked by devin
  223. Algebra

    I need to use Pascal's Triangle to expand (x-1)^5 I know I use the fifth row but I'm not sure how to do it- I have a bunch of these and I'm really confused- Please help if you can-

    asked by Jonathan
  224. precalc/trig

    Solve the Logarithmic equation algebraically. Give an Exact Answer and an approximation for x to four decimal places. 20 log(2x+2)=45

    asked by Alexander
  225. chemistry

    If we have a solution in which the [OH -] = 3.3 x 10-4, then the [H3O+] must be

    asked by Anonymous
  226. Accounting

    Simon issues four-year bonds with a $50,000 par value on June 1, 2011, at a price of $47,974. The annual contract rate is 7%, and interest is paid semiannually on November 30 and May 31.

    asked by Helen
  227. chemistry

    Acids are found on the pH scale between the numbers 0-6.9 True or False

    asked by Anonymous
  228. sci

    i need some ideas for a high school sci fair project

    asked by anonymouse
  229. chemistry

    An alpha particle is best describe by: ^4He2, ^0e-1, ^0e+1, ^0e0

    asked by Anonymous
  230. chemistry

    A fixed amount of gas initially at 100 K and pressure P1 is expanded from 1 L to 100 L in a piston. The temperature, T2, of the gas at this point is 50 K. The piston is then locked at constant volume V2=100 L and half the gas is pumped out at a constant

    asked by laura
  231. chemistry

    pH is defined as 10^-log [H3O+] True or False

    asked by Anonymous
  232. Complements

    Is there an easy way to remember how to identify the subject, verb, direct object, indirect object, Predicate nominative, and predicate adjective of a sentence? Is there any tricks? Im so confused.

    asked by Bryce
  233. math

    Julian baked m cookies. Each baking pan holds 12 cookies. How many baking pans were needed to bake the cookies? Please help I need a complete answer!!!

    asked by Alicia
  234. PARP

    PARP stands for parents as reading partners. I did this in gade 4th and 5th and I was wondering if we do it in middle school????

    asked by Laruen
  235. Reading

    Is their any reading contest like the battle of the books?????

    asked by Laruen
  236. US history HELP

    The fact that “We Shall Overcome” became the civil rights anthem showed the powerful influence in the movement of: 1. black evangelical churches 2. popular music 3. liberal white northerners 4. songwriters 5. Christians, regardless of their race 2 or 4

    asked by HM
  237. chemistry

    What is the concentration of an HCl solution if 23.1 mL of HCl are needed to neutralize completely 35.0 mL of 0.101 M Ba(OH)2 I cannot get the right answer

    asked by corey
  238. Math

    Explain how to determine the value of x that gives a maximum for a transformed cosine function in the form y=acos(k(x-d)) + c, a>0, if the maximum for y=cosx occur at (0degrees, 1)

    asked by Jacob
  239. chemistry

    N2O undergoes thermal decomposition at 730°C to nitrogen (N2) and oxygen (O2) via first-order kinetics with a half-life of 3.58 x 103 minutes. Calculate the time required for 90% of a sample of N2O to decompose at 730°C.

    asked by Cece
  240. Calculus

    Suppose the profit, π, from selling q items of a product is given by π(q) = 2.65q-1200. Find the value of π'(100).

    asked by anonymous
  241. math 117

    Quadratic equations may be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? When might each method be most appropriate? Which method do you prefer? Explain why.

    asked by Anonymous
  242. science

    What net force is needed to acclerate a 10kg objec by 3m/s2? Given: m=10kg: 3m/s2

    asked by sophia lorraine
  243. geometry

    The perimeter of a rectangle is 42. The perimeter of a triangle is 36. Find the values of x and y

    asked by Anonymous
  244. Math

    f(x) = 5x^2 - 35x I converted ^ that equation to.. 5x^2-35x = 0 How do I go about from here to determine the zeros and the y intercept?

    asked by -Untamed-
  245. chemistry

    You have 11.20 grams of a compound. It is known that the compound has a half-life of 3.8 days. How long will it take for the compound to decay to 0.350 grams?

    asked by Anonymous
  246. chemistry

    How many grams of NH3 can be made from 375g of N2?

    asked by sara
  247. chemistry

    When K2SO4 is mixed with water, we expect:

    asked by Anonymous
  248. Math

    I need help on this question, I know the answer (or, at least I think I know it), but I can't think of the rest. Bobby claims that only upright squares can have rational numbers for side lengths. Is he correct? Explain. I got yes, he is correct, but I

    asked by Katie
  249. physics

    1.A 500.0 g mass is placed on a 20.0 cm cube of gelatin. The 500.0 g mass (a 5.00 cm diameter disk) depresses the gelatin 0.243 mm. What is Young's modulus for this gelatin? ____________N/m^2 Later, a 2.00 kg mass disk (5.00 cm in diameter) is placed on

    asked by sand
  250. algebra

    find a quadratic function that fits the set of data points (1,4) (-1,6) (-2,16)

    asked by Anonymous
  251. chemistry

    A particular solution has a [H3O+] 2.44 x 10^-4. Therefore, the [OH-]= 4.10 x 10^3 4.10 x 10^-11 2.44 x 10^-4 1.71 x 10^-8 9.09 x 10^-16

    asked by Anonymous
  252. Psychology

    Help Please! I need to know if this the correct answer. I said the answer is C Which approach would explain that phobias are acquired through classical conditioning and the hypochondriac's "sickness behavior" is reinforced by sympathy and attention? a.

    asked by Princess
  253. socials

    for another event in 1960 I draw U-2 spy plane and write beside it was shot down over Soviet territory, it a single seat, single-engine, high altitude, reconnaissance aircraft.

    asked by Mohammad
  254. physics

    Calculate the difference between the magnitude of the gravitational force and the magnitude of the normal force exerted on a 100 kg object at the equator. Which of the two forces is equal in magnitude to the weight of the object?

    asked by Alex
  255. history

    "medieval parents were cruel.They did not properly care for, or look after, their children" To what extent do you agree?

    asked by Anonymous
  256. chemistry

    The end point is the point at which the solutions are neutral and the neutralization process has come to an end. True or False

    asked by Anonymous
  257. Texas Government

    A decision or precedent made by which of the following types of court applies to all other courts under its jurisdiction? a. magistrate b. trial c. appellate d. commissioners Trial?

    asked by HM
  258. macroeconomics

    The relationship between inflation and aggregate demand is negative. the relationship between inflation and real interest rate is a positive. ( not sure if its right) the relationship between aggregate demand and real interest rate is negative.

    asked by anon
  259. chemistry

    electronic dot formula for C4H10

    asked by Anonymous
  260. math

    Divide the rectangles by tens and ones for each factor. Find the number of squares in each smaller square. Then add the numbers of the squares in the four rectangles : 200+40+40+8=288 So, 12x24 =288

    asked by jason
  261. Math

    Determine for what value(s) of d the quadratic equation 5x^2-10x+d = 0 has i) real and distinct roots ii)real and equal roots iii)non-real roots This is what I did to solve for A. 5x^2-10x+d = 0 b^2-4ac = 0 (-10)^2-4(5)(d) = 0 100-20d = 0 -20d = -100 d = 5

    asked by -Untamed-
  262. Algebra

    I'm not sure how to get started! Please help! y=-2x^2-12x+2 Find the vertex, y intercept and x intercept

    asked by Sabrina
  263. math

    If there are 264 students in a school and there are 84 eighth graders and There are 22 fewer seventh graders than sixth graders. Then which grade has the most students and how many students are there.

    asked by KC
  264. Math

    I am trying to decide between 2 answers on a vocabulray question. The question is: The ________________ of two or more denominators is the least common denominator. The choices are either simplest form or least common multiple. Would the correct answer be

    asked by Brandi
  265. socials

    did berlin wall close in 1960? when berlin wall was built it was divided into 4 sectors, French, British, American, Russian. But I not know what to say for caption when berlin wall close.

    asked by Mohammad
  266. PSY

    ocus of the Research Paper Carefully review the scenario below: Susan and Molly, employees in a busy call center, are chatting at lunch. Between bites of fried chicken, French fries, high calorie soda, and a tiny salad, Susan begins to complain to Molly

    asked by sue
  267. trig

    find all solutions of 2sinx=1-cosx in the interval from 0 to 360

    asked by Anonymous
  268. enviormental science

    in two or three well-developed paragraphs, summarize how the reproductive behavior of individuals can affect the growth rate of their population

    asked by nesha
  269. Physics

    A 90 kg mover climbs a ladder to a height of 8 m in 32 s. Find the power rating of the mover. I solved by using P= mgh/t and came up with 220.5 watts. Is this correct or am I suppose to use P=w/t and not use gravity in the equation?

    asked by Jim
  270. geometry

    the geometric mean of the quantaties (x+1)and (2x+3)is(x+3). i know that x^2+6x+9=2x^2+5x+3 and 6=x^2-x (i forgot basic algebra)

    asked by Anonymous
  271. physics

    a block(500N) is being pulled along a surface having coefficients of kinetic and staic friction of 0.45 and 0.5 respectively..draw a free body diagram of the block and find the minimum force that can be applied to the block at an angle 15¢X below the

    asked by Anonymous
  272. math

    problem # 1 No Zeroes two numbers multiply to give 100 000. Neither of them contain a zero. What are the numbers? problem # 2 Junk Food a burger and a cola togerther cost $3.25. If the burger costs $1.75 more than the cola, how much does the cola cost? PLZ

    asked by sim
  273. english

    Does this sentence sound good or should I change it up? They expected a grandeur lifestyle filled with endless opportunities to be successful and happy.

    asked by jon
  274. chemistry

    How many moles of NH3 are produced from 48.5 g of H2?

    asked by sara
  275. Calc

    find d^2y/dx^2 of x^2/3 + y^2/3 =1 (implicit differentiation)

    asked by Anonymous
  276. Calc

    find d^2y/dx^2 of dy/dx = -[y/x]^1/3

    asked by Anonymous
  277. math

    What is the largest number of groups Mr. Smith could form to distribute 60 folders, 45 pairs of scissors, and 30 rulers equally among the groups?

    asked by paris
  278. chemistry

    STP conditions are considered to be

    asked by Anonymous
  279. US history HELP

    In relation to society’s prevailing values in the 1950s, most teens tended to be: 1. supportive 2. critical 3. uncaring 4. defiant 5. uncertain All I know that they were showing a lot of criminal behaviour. I found the meaning of these words but they are

    asked by HM
  280. precalc

    Determine whether the sequence is geometric or arithmetic. Then give the general formula for the nth term of the sequence. 6.1, 6.9, 7.7, 8.5, 9.3,... I think it is Geometric, but i don't know how to find the formula

    asked by Alex
  281. health

    Several waveforms grouped together is called complex?

    asked by violet
  282. PSYCHOLOGY HELP PLEASE!!

    "The origin of the abnormal behavior is not my concern. We will attack the behavior as it stands and work together to change it, thereby reducing the anxiety you are experiencing." This statement would be typical of the: a. medical perspective. b.

    asked by Anonymous
  283. please, need help on factoring

    factor x^3-(x+y)^3

    asked by Anonymous
  284. computer sciece

    1.which directory does Vim to load color scheme? 2.Set a key mapping in Vim and explain how it works? can someone help me with this questions...

    asked by Tracy
  285. science

    How does the mass of all the interstellar matter in our galaxy compare with the total mass of its stars?

    asked by Shirley
  286. ELA

    Which one is a diary? court case or daily record? I think its daily record

    asked by Jaycee
  287. interviw

    if you are to be recognised and given an award, What would be most recognized for a year from now?

    asked by Paris
  288. US History

    What three parts make up the supreme law of the land?

    asked by Sarah
  289. English

    1. Research projects that have won Ig Nobel Prizes are real, scientific work. (have won) 2. Here are some of the most interesting projects that have received the prizes so far. (have received) (Question: What is the use of the present perfect in each

    asked by rfvv
  290. calculus

    Find the point of discontinuing of the given function: 2 Marks f (x) = 3x + 1 X2-7x+12

    asked by nida jabeen
  291. interview

    what quality or attribute do you feel that you possese that would allow you to deal with conflict?

    asked by Paris
  292. science

    should we produce more nuclear reactors or less of them?

    asked by kim
  293. algebra

    A machine's ideal temperature is below 135 degreesF. The temperature T in degrees x minutes after it is turned on is T=-0.005x^2 = 0.45x + 125. Will the temperature ever exceed 135 degrees. Use the discriminate to decide. If the machine operates for 90

    asked by eric
  294. chemistry

    Q: A 1.5L solution is prepared using 75g of calcium chloride. What is the molarity of this solution?

    asked by Anonymous
  295. Science

    Stage of mitosis in which Chromosomes split apart

    asked by Emily
  296. chemistry

    When a particular chemical compound can act as either an acid or a base we say that compound is

    asked by Anonymous
  297. Math

    2x(x+3) = 0 Is there a way to solve that using the below methods? Substitute zero for f(x) and find the roots of the resulting equation, or graph the function and determine the x-intercepts of the graph. Finding the roots of a single variable equation may

    asked by -Untamed-
  298. Math

    x^3 + 8x^2 = 20x How do I find the root of ^ that equation? 2x^2-10x+12 = 0 ^ I found that one by... 2(x-3)(x-2) x-3 = 0 x = 3 x-2 = 0 x =2 ^ Is that the correct way to solve for that one?

    asked by -Untamed-
  299. chem

    A pressure cooker with a volume of 6 L is filled with 27 grams of water and heated to 390.2 K. What is the pressure (atm) in the cooker?

    asked by laura
  300. English

    Could you please help me check these sentences, please? I have a few doubts on sentences you checked some time ago. 1) This ballad is composed of seven parts consisting of four-line stanzas. 2) The mariner's glittering eyes force the wedding guest to

    asked by Henry2
  301. trig

    Find all the solutions of 2 sinx=1-cosx in the interval from 0° ≤x

    asked by Anonymous
  302. chemistry

    When a base is added to an acid so that neutralization occurs, we say that the solution is at the:

    asked by Anonymous
  303. science

    What is the ratio of the large cell volume is 64mm3 and surface is 96mm2

    asked by chris
  304. chemistry

    How many grams of N2 are needed to react with 125g of H2?

    asked by sara
  305. chemistry

    A particular gas has a pressure of 1614 torr. This pressure is equivalent to

    asked by Anonymous
  306. English

    Hello. I'll be very grateful for your help. 1)Is it possible to use "involve" in the context "This step could involve a serious crisis"? 2)Is it possible to use "till the present day" the same as "until now", for example "Till the present day, China has

    asked by Ilma
  307. chemistry

    The compound HA is considered a STRONG acid and is present in H2O (water molecules not shown). Which of the following beakers best represents the electrolyte composition in the beaker.?:

    asked by Anonymous
  308. chemistry

    How do you know when the complex ion is strong field or weak field when the arrangement is octahedral? How do you choose which is better?

    asked by Noorah
  309. chem

    A 0.0097561 g quantity of an unknown gas occupies 0.2 L at 500 K and 2 atm. What is the Molecular Weight (MW) of the gas ?

    asked by laura
  310. chem

    A pressure cooker with a volume of 6 L is filled with 27 grams of water and heated to 390.2 K. What is the pressure (atm) in the cooker?

    asked by laura
  311. socials

    for another 1960 event i draw a hippie looking person because it turn into popular look and fashion. and I write beside that skirts began lengthen out with hair. Women wear long floor length dresses and skirts called maxies, men make their hair grow

    asked by Mohammad
  312. chemistry

    A chemist dilutes 144.0 mL of 0.0743 M HCl with 775.0 mL of water. Determine the pH of the diluted solution. 1.86, 1.13, 2.08, 1.93, 12.07

    asked by Anonymous
  313. Algebra 102

    9^x=1/3^3 Please Help

    asked by CC
  314. THANK YOU MS.SUE

    Thank you for always giving me the correct answers for my questions.Do you live in florida.

    asked by Jennifer White
  315. socials

    for 1960 i draw atomic bomb and write beside that it kept super powers from attacking eachother i think that not good caption i not know

    asked by Mohammad
  316. math

    what would $5000 compounded daily at 1.5% be after 1 year

    asked by roger
  317. Creative Writing

    Anyone have any suggestions for a title on an essay about breast cancer?

    asked by Jennifer
  318. pca

    why do you went to be a pca

    asked by Paris
  319. Physics

    What is a magnetic field of 950 G expressed in tesla?

    asked by Danny
  320. socials

    can give me link to map of berlin when berlin wall close down.

    asked by Mohammad
  321. PSYCHOLOGY HELP PLEASE!!

    Electroconvulsive therapy may produce immediate relief from depression, but: a. may result in schizophrenia. b. can also change the hemisphericity of the brain. c. is not a long-term improvement. d. should not be used more than once. I think it is c.

    asked by Anonymous
  322. english

    We are poisioning ourselves slowly. Many towns are putting garbage in landfills. poisoning and landfills are they main verbs in each of these sentences. I think landfill would be, how about poisoning?

    asked by jill
  323. algebra

    f(X) = p(1+ r/n) nt The principal is 50,000 The time is 3years the rate is 4%

    asked by Beatrice
  324. physics

    A family drives 400 milles in 8 hours. Explain how the acceleration of their car changed?

    asked by patty
  325. Science HELP

    when traveling only a tiny distance through rock below the earths surface what happens to alpha particles ?

    asked by john
  326. English Comp. I

    Exercise 32.4 Please help with this assignment. I'm having trouble with it. Rive to clarify pronoun reference. Most can be revised in many ways. If a pronoun refers ambiguously to more than one possible antecedent, revise the sentence to reflect each

    asked by Robert
  327. chemistry

    You have a compound that is subject to decay. If you originally started with 80 g of the compound and you ended up with 5 grams 30 days later, what is the half-life of the compound?

    asked by Anonymous
  328. English

    Could you please check these sentences, too? Thank you. 1) There was a shifting of the population from South to North. 2) You reported my notes without changing a single word. A paragraph mustn't be the exact repetition of my summaries. 3) Furthermore,

    asked by Henry2
  329. Psychology

    Someone please help! I'm having a hard time with this question. Please help! If a person believes that his or her mind is being controlled by outside forces or that he or she is getting special coded messages from the television, this person is

    asked by Keller
  330. chem

    A 0.0097561 g quantity of an unknown gas occupies 0.2 L at 500 K and 2 atm. What is the Molecular Weight (MW) of the gas ?

    asked by laura
  331. chem

    Two gas tanks containing compounds A and B are connected by separate valves to two ends of a 10 meter glass tube as shown below. When both valves are thrown open at the same time A and B travel down the tubes towards each other. A white line appears when

    asked by laura
  332. german

    Write the conversation in present perfect tense: 1. das konzert/ euch/ gefallen/? 2. ja,/ die Band/ tolol/ spielen 3. was/ du/ machen/? 4. ich/ den ganzen Abend/ am Computer/ sitzen 5. du/ wiel/ fur deine Prufungen/ arbeiten/? 6. ich/ im Internet/ surfen

    asked by Meg
  333. chemistry

    1 atmosphere of pressure is equivalent to

    asked by Anonymous
  334. Math

    (a+bx)(c+dx)=income solve for x

    asked by elisabeth
  335. Math

    x^3 + 8x^2 = 20x How do I find the root of ^ that equation? 2x^2-10x+12 = 0 ^ I found that one by... 2(x-3)(x-2) x-3 = 0 x = 3 x-2 = 0 x =2 ^ Is that the correct way to solve for that one

    asked by -Untamed-
  336. general mathematics

    Write 19% as a decimal

    asked by Cort
  337. chemistry

    A solution that holds the maximum amount of solute under the solution conditions is said to be

    asked by Anonymous
  338. mathematics

    Find all the solutions of 2 sinx=1-cosx in the interval from 0° ≤x

    asked by Anonymous
  339. macroeconomics

    how does someone go about deriving the aggregate demand function? what should i explain first

    asked by anon
  340. US Judicial System

    A decision or precedent made by which of the following types of court applies to all other courts under its jurisdiction? a. magistrate b. trial c. appellate d. commissioners Trial?

    asked by HM
  341. chemistry

    You have 26.44 mL of 1.83 M HCl in a beaker. You dilute this acid with 40.08 mL of water. When you analyze the solution you find that the number of moles of HCl in the new solution is

    asked by Anonymous
  342. Psychology

    Please help! I have read and read and still don't no for sure if this is the correct answer to this question. I picked A, but leaning more toward D Which approach would explain that phobias are acquired through classical conditioning and the

    asked by Princess
  343. Astronomy-HELP PLEASE!!!!!

    STILL HAVE NOT GOTTEN AN ANSWER FOR THIS!! If the Hubble parameter is found to be smaller than we think it is, how would this change the measured age of the universe? justify your answer

    asked by Amy
  344. social studies

    where is the EPCOT center located

    asked by Jennifer White
  345. english

    Hi, I have another question about a sentence in my paper. Does this sound alright? Immigrants envisioned and anticipated America to be an answer to their problems but what they got instead was a world filled with filth.

    asked by jon
  346. English

    I left out a few sentences. Can you please check them? 1)England turned from an agricultural into an industrialized (not industrial) country. 2)The Indutrial Revolution caused an improvement in life (or in the living conditions). 3) The Luddites organized

    asked by Henry2
  347. Living environment

    what kind of fossil with whale characteristics was found in the desserts of Pakistan?

    asked by ADAM
  348. chemistry

    You dissolved 14.08 g of CuCl2 (MM = 135 g/mole) in enough water to make 266 mL of solution. The concentration of this solution is:

    asked by Anonymous
  349. math

    Rodney and James are each 30 feet from a door. Rodney moved one foot closer and James moved half the distant between himself and the door. If each person continued to move in this fashion, who would be closer to the door after 10 moves? !@#$%^&aches the

    asked by Tia
  350. ASTRONOMY

    If the Hubble parameter is found to be smaller than we think it is, how would this change the measured age of the universe? justify your answer

    asked by Amy
  351. Physics 201

    Suppose the mass of the wing is 0.258g and the effective spring constant of the tissue is 4.00E-4 N/m. Distance d1 = 3.03 mm and distance d2 = 1.76 cm. If the mass m moves up and down a distance of 2.08 mm from its position of equilibrium, what is the

    asked by Jessica
  352. Science

    what can alpha particles cause significant damage to ?

    asked by john
  353. eth

    Question if a person described as a viruous is this the same as saying that a person is moral or ethical?

    asked by at
  354. English

    I still have a few doubts on some sentences. Thank you very much. 1) Thanks to the development (introduction) of steam engine, the manufacture of cloth became cheaper (or to manufacture cloth became cheaper). 2) The poet personifies the elements of nature.

    asked by Henry2
  355. english

    can anyone help me with explicationg act 3 scene 1 (setting) (charcater) (plot) (theme) of macbeth?

    asked by ali
  356. chemistry

    What are conjugate acid-base pairs

    asked by Anonymous
  357. ALGEBRA

    determine if (-1/3,3) is a solution to 3x+8y=23

    asked by Angela
  358. psychology test help ASAP

    list 7 things that are needed to be considered emotionally intelligent??

    asked by gabby
  359. Canadian History

    1. Who gave Jim Sinclair a crucial piece of advice early in his career? 2. What (or who) connects the current drug store chain, London Drugs, to the gold rush era of British Columbia?

    asked by Jimmy
  360. chemistry

    If the pH of a particular solution is 2.08, then the [OH -] must be:

    asked by Anonymous
  361. geomety

    model three different rectangulars using exatly 2 yards.

    asked by Geancarlo
  362. math

    24+1+1/8

    asked by darren
  363. pre algebra

    what is the length of a banana-14m,14cm or 14mm?

    asked by kimber
  364. Math

    A person rolls two dice. What are the odds in favor of throwing at least an eight?

    asked by Anonymous
  365. math **urgent**

    using 100 ft of fence material and building a regular octagon garden, what is the area of the garden?

    asked by Anne
  366. algebra; need help on factoring

    factor completely a^9+b^12 c^15

    asked by Anonymous
  367. math

    3x3=36/8___

    asked by Casey